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TestHelpers.draggable = {
// todo: remove the unreliable offset hacks
unreliableOffset: $.ui.ie && ( !document.documentMode || document.documentMode < 8 ) ? 2 : 0,
testDrag: function(el, handle, dx, dy, expectedDX, expectedDY, msg) {
var offsetAfter, actual, expected,
offsetBefore = el.offset();
$( handle ).simulate( "drag", {
dx: dx,
dy: dy
});
offsetAfter = el.offset();
actual = { left: offsetAfter.left, top: offsetAfter.top },
expected = { left: offsetBefore.left + expectedDX, top: offsetBefore.top + expectedDY };
msg = msg ? msg + "." : "";
deepEqual(actual, expected, 'dragged[' + dx + ', ' + dy + '] ' + msg);
},
shouldMove: function(el, why) {
TestHelpers.draggable.testDrag(el, el, 50, 50, 50, 50, why);
},
shouldNotMove: function(el, why) {
TestHelpers.draggable.testDrag(el, el, 50, 50, 0, 0, why);
},
testScroll: function(el, position ) {
var oldPosition = $("#main").css('position');
$("#main").css('position', position);
TestHelpers.draggable.shouldMove(el, position+' parent');
$("#main").css('position', oldPosition);
},
restoreScroll: function( what ) {
if( what ) {
$(document).scrollTop(0); $(document).scrollLeft(0);
} else {
$("#main").scrollTop(0); $("#main").scrollLeft(0);
}
},
setScroll: function( what ) {
if(what) {
// todo: currently, the draggable interaction doesn't properly account for scrolled pages,
// uncomment the line below to make the tests fail that should when the page is scrolled
// $(document).scrollTop(100); $(document).scrollLeft(100);
} else {
$("#main").scrollTop(100); $("#main").scrollLeft(100);
}
},
border: function(el, side) {
return parseInt(el.css('border-' + side + '-width'), 10) || 0;
},
margin: function(el, side) {
return parseInt(el.css('margin-' + side), 10) || 0;
}
};
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